OMAP3: CPUidle: remove redundant setting of PER next power state

When checking how to program the next powerstate for the PER
powerdomain, the next state of PER powerdomain was written twice.
Remove the duplicate write.
Reported-by: NSantosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: NKevin Hilman <khilman@deeprootsystems.com>

arch/arm/mach-omap2/cpuidle34xx.c

@@ -272,10 +272,8 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
 	 */
 	per_next_state = per_saved_state = pwrdm_read_next_pwrst(per_pd);
 	if ((per_next_state == PWRDM_POWER_OFF) &&
-	    (core_next_state > PWRDM_POWER_RET)) {
+	    (core_next_state > PWRDM_POWER_RET))
 		per_next_state = PWRDM_POWER_RET;
-		pwrdm_set_next_pwrst(per_pd, per_next_state);
-	}
 
 	/* Are we changing PER target state? */
 	if (per_next_state != per_saved_state)